245 Reviews on Tirerack (which is where I bought the tires). Sort them by rating, you will see that about 6 of the lowest ratings report balance/handling/noise issues. The overall rating pretty much exceeds any other SUV tire that they sell.

I'm not saying they are perfect, I just wanted to post my good experience so fellow X5 owners weren't swayed away from Generals after reading your comment.

So, speaking from personal experience: I'm running General Grabber HTS, in winter, in Alberta, and they perform very well.